Alkoxylate mixture and its use as a cleaning agent for hard...

Details Alkoxylate mixture and its use as a cleaning agent for hard... Alkoxylate mixture and its use as a cleaning agent for hard...

2007-01-09

2007-01-09

Hardee, John R. (Department: 1751)

Cleaning and liquid contact with solids

Processes

Miscellaneous

C510S421000, C510S506000

Reexamination Certificate

active

10525263

ABSTRACT:
The invention relates to an alkoxylate mixture having H formula (I) where PO is a propyleneoxy unit, EO is an ethyleneoxy unit, n has an average value in the range 1.6–3.3 per 2-ethylhexyl group and m has an average value in the range 3.0–5.5 per 2-ethyl-hexyl group, and containing less than 1.5% by weight of unreacted 2-ethylhexanol; the said mixture being obtained by reacting 2-ethyl-hexanol in a first step with propylene oxide and in a second step the propoxylated mixture obtained with ethylene oxide. The alkoxylate mixture is a good cleaning surfactant and wetting agent and is also readily biodegradable.

REFERENCES:
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patent: 4965014 (1990-10-01), Jeschke et al.
patent: 5385681 (1995-01-01), Sato et al.
patent: 5705476 (1998-01-01), Hoffarth
patent: 6150445 (2000-11-01), Bostrom et al.
patent: 6602823 (2003-08-01), Rochling et al.
patent: 292147 (1991-07-01), None
patent: 0034194 (1981-08-01), None
patent: 0652281 (1995-05-01), None
patent: 0681865 (1995-11-01), None
patent: 0845449 (1998-06-01), None
International Search Report, No. PCT/SE/03/01049, Oct. 3, 2003.
Derwent Abstract DD 292146 A5; Jul. 25, 1991.
Derwent Abstract DD 292147 A5; Jul. 25, 1991.
Derwent Abstract of EP 0034194 B1; Aug. 26, 1981.

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